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Unix Time Tools

Convert Unix timestamps to UTC, UTC to Unix, HMS durations, and cron expressions. Fast, accurate, browser-based date and time utilities.

What you can do

  • Convert epoch seconds to human-readable UTC and local time
  • Convert calendar dates to Unix timestamps for APIs and logs
  • Parse cron expressions and convert seconds ↔ hours/minutes/seconds

All tools run locally in your browser. No account required.

Tools in this cluster

date tools
Unix Time to UTC

Convert Unix epoch seconds to UTC date and time (ISO 8601). Paste a timestamp or pick a date — free, instant, runs in your browser.

date tools
UTC Time to Unix

Convert UTC date and time strings into Unix timestamps in seconds since the Unix epoch.

date tools
Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Support for milliseconds and various formats.

date tools
Seconds to H:M:S

Convert a total number of seconds into hours, minutes, and seconds for easier reading and configuration.

date tools
H:M:S to Seconds

Convert a time duration expressed as hours, minutes, and seconds into a single total seconds value.

converters
Cron Expression Reader

Understand cron expressions in plain English. Validate and explain cron schedules with next run times.

All date & time toolsTool guides